<!DOCTYPE html>
<html lang="zh-cn">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
    *{
        margin: 0px;
        padding: 0px;
        font-size: 15px;
    float: left;
    }
    .a{width:100%}
    .a .a_1,.a_2,.a_3{
        float: left;
    }
    .a_2{
        margin: 0px 10px 0px 10px;
    }
      .b {
        margin-top: 20px;
      }
    </style>
  </head>
  <body>
    <form method="GET">
      <div>
        <div class="a">
          <div class="a_1 o">
            我想找:<select>
              <option>不限</option>
              <option>开黑</option>
              <option>师傅</option>
            </select>
          </div>
          <div class="a_2 o">
            常在时段:<select>
              <option>工作日</option>
              <option>周末</option>
              <option>每天</option>
            </select>
            <select>
              <option>上午</option>
              <option>中午</option>
              <option>下午</option>
            </select>
          </div>
          <div class="a_3 o">
            段位<select>
              <option>青铜</option>
              <option>白银</option>
              <option>黄金</option>
            </select>
          </div>
          <input type="reset" />
        </div>
        <div class="b">
          <div class="b_1">
            <input type="checkbox" />同城好友
            <input type="checkbox" checked="checked" />男
            <label for="a">女</label><input type="checkbox" id="a"/>
          </div>
          <div class="b_2">
            <select>
                <option>ios平台</option>
                <option>安卓</option>
              </select>
          </div>
          <input type="text" class="b_3" />
          <input type="submit"  class="b_4"/>
        </div>
      </div>
    </form>
  </body>
</html>
